Package com.google.gwt.user.datepicker.client

Class DateBox

java.lang.Object

com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.Widget

com.google.gwt.user.client.ui.Composite

com.google.gwt.user.datepicker.client.DateBox

All Implemented Interfaces:

IsEditor<LeafValueEditor<Date>>, HasAttachHandlers, HasValueChangeHandlers<Date>, HasHandlers, EventListener, TakesValue<Date>, HasEnabled, HasValue<Date>, HasVisibility, IsRenderable, IsWidget

public class DateBox
extends Composite
implements HasEnabled, HasValue<Date>, IsEditor<LeafValueEditor<Date>>

A text box that shows a DatePicker when the user focuses on it.

CSS Style Rules

.gwt-DateBox

default style name

.dateBoxPopup

Applied to the popup around the DatePicker

.dateBoxFormatError

Default style for when the date box has bad input. Applied by DateBox.DefaultFormat when the text does not represent a date that can be parsed

Example

public class DateBoxExample implements EntryPoint {

  public void onModuleLoad() {
    DateBox dateBox = new DateBox();
    dateBox.setValue(new Date());
    RootPanel.get().add(dateBox);
  }
}

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DateBox.DefaultFormat	Default DateBox.Format class.
static interface	DateBox.Format	Implemented by a delegate to handle the parsing and formating of date values.

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_STYLENAME	Default style name.

Fields inherited from class com.google.gwt.user.client.ui.UIObject

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor	Description
DateBox()	Create a date box with a new DatePicker.
DateBox(DatePicker picker, Date date, DateBox.Format format)	Create a new date box.

Method Summary

Modifier and Type	Method	Description
HandlerRegistration	addValueChangeHandler(ValueChangeHandler<Date> handler)	Adds a ValueChangeEvent handler.
LeafValueEditor<Date>	asEditor()	Returns a TakesValueEditor backed by the DateBox.
int	getCursorPos()	Gets the current cursor position in the date box.
DatePicker	getDatePicker()	Gets the date picker.
boolean	getFireNullValues()	Returns true iff the date box will fire ValueChangeEvents with a date value of null for invalid or empty string values.
DateBox.Format	getFormat()	Gets the format instance used to control formatting and parsing of this DateBox.
int	getTabIndex()	Gets the date box's position in the tab index.
TextBox	getTextBox()	Get text box.
Date	getValue()	Get the date displayed, or null if the text box is empty, or cannot be interpreted.
void	hideDatePicker()	Hide the date picker.
boolean	isDatePickerShowing()	Returns true if date picker is currently showing, false if not.
boolean	isEnabled()	Returns true if the date box is enabled, false if not.
void	setAccessKey(char key)	Sets the date box's 'access key'.
void	setEnabled(boolean enabled)	Sets whether the date box is enabled.
void	setFireNullValues(boolean fireNullValues)	Sets whether or not the date box will fire ValueChangeEvents with a date value of null for invalid or empty string values.
void	setFocus(boolean focused)	Explicitly focus/unfocus this widget.
void	setFormat(DateBox.Format format)	Sets the format used to control formatting and parsing of dates in this DateBox.
void	setTabIndex(int index)	Sets the date box's position in the tab index.
void	setValue(Date date)	Set the date.
void	setValue(Date date, boolean fireEvents)	Sets this object's value.
void	showDatePicker()	Parses the current date box's value and shows that date.

Methods inherited from class com.google.gwt.user.client.ui.Composite

claimElement, getWidget, initializeClaimedElement, initWidget, isAttached, onAttach, onBrowserEvent, onDetach, render, render, resolvePotentialElement, setWidget

Methods inherited from class com.google.gwt.user.client.ui.Widget

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getHandlerCount, getLayoutData, getParent, isOrWasAttached, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

fireEvent

Field Details

DEFAULT_STYLENAME

public static final String DEFAULT_STYLENAME

Default style name.

See Also:

• Constant Field Values

Constructor Details

DateBox

public DateBox()

Create a date box with a new DatePicker.

DateBox

public DateBox(DatePicker picker,
 Date date,
 DateBox.Format format)

Create a new date box.

Parameters:

picker - the picker to drop down from the date box

date - the default date.

format - to use to parse and format dates

Method Details

addValueChangeHandler

public HandlerRegistration addValueChangeHandler(ValueChangeHandler<Date> handler)

Description copied from interface: HasValueChangeHandlers

Adds a ValueChangeEvent handler.

Specified by:

addValueChangeHandler in interface HasValueChangeHandlers<Date>

Parameters:

handler - the handler

Returns:

the registration for the event

asEditor

public LeafValueEditor<Date> asEditor()

Returns a TakesValueEditor backed by the DateBox.

Specified by:

asEditor in interface IsEditor<LeafValueEditor<Date>>

Returns:

an Editor of type E

getCursorPos

public int getCursorPos()

Gets the current cursor position in the date box.

Returns:

the cursor position

getDatePicker

public DatePicker getDatePicker()

Gets the date picker.

Returns:

the date picker

getFireNullValues

public boolean getFireNullValues()

Returns true iff the date box will fire ValueChangeEvents with a date value of null for invalid or empty string values.

getFormat

public DateBox.Format getFormat()

Gets the format instance used to control formatting and parsing of this DateBox.

Returns:

the format

getTabIndex

public int getTabIndex()

Gets the date box's position in the tab index.

Returns:

the date box's tab index

getTextBox

public TextBox getTextBox()

Get text box.

Returns:

the text box used to enter the formatted date

getValue

public Date getValue()

Get the date displayed, or null if the text box is empty, or cannot be interpreted.

Specified by:

getValue in interface HasValue<Date>

Specified by:

getValue in interface TakesValue<Date>

Returns:

the current date value

See Also:

• TakesValue.setValue(V)

hideDatePicker

public void hideDatePicker()

Hide the date picker.

isDatePickerShowing

public boolean isDatePickerShowing()

Returns true if date picker is currently showing, false if not.

isEnabled

public boolean isEnabled()

Returns true if the date box is enabled, false if not.

Specified by:

isEnabled in interface HasEnabled

setAccessKey

public void setAccessKey(char key)

Sets the date box's 'access key'. This key is used (in conjunction with a browser-specific modifier key) to automatically focus the widget.

Parameters:

key - the date box's access key

setEnabled

public void setEnabled(boolean enabled)

Sets whether the date box is enabled.

Specified by:

setEnabled in interface HasEnabled

Parameters:

enabled - is the box enabled

setFireNullValues

public void setFireNullValues(boolean fireNullValues)

Sets whether or not the date box will fire ValueChangeEvents with a date value of null for invalid or empty string values.

setFocus

public void setFocus(boolean focused)

Explicitly focus/unfocus this widget. Only one widget can have focus at a time, and the widget that does will receive all keyboard events.

Parameters:

focused - whether this widget should take focus or release it

setFormat

public void setFormat(DateBox.Format format)

Sets the format used to control formatting and parsing of dates in this DateBox. If this DateBox is not empty, the contents of date box will be replaced with current contents in the new format.

Parameters:

format - the new date format

setTabIndex

public void setTabIndex(int index)

Sets the date box's position in the tab index. If more than one widget has the same tab index, each such widget will receive focus in an arbitrary order. Setting the tab index to -1 will cause this widget to be removed from the tab order.

Parameters:

index - the date box's tab index

setValue

public void setValue(Date date)

Set the date.

Specified by:

setValue in interface HasValue<Date>

Specified by:

setValue in interface TakesValue<Date>

Parameters:

date - the object's new value

See Also:

• TakesValue.getValue()

setValue

public void setValue(Date date,
 boolean fireEvents)

Description copied from interface: HasValue

Sets this object's value. Fires ValueChangeEvent when fireEvents is true and the new value does not equal the existing value.

It is acceptable to fail assertions or throw (documented) unchecked exceptions in response to bad values.

Specified by:

setValue in interface HasValue<Date>

Parameters:

date - the object's new value

fireEvents - fire events if true and value is new

showDatePicker

public void showDatePicker()

Parses the current date box's value and shows that date.